Feed-cutter



(No Model.)

B. ROSS. FEED CUTTER.

No. 400.117. Pateilfed Mar. 26, 18 89.

WITNESSES @100 N4 PEYERS; mumm m. Ylldlingiun, RC4

UNITED STATES PATENT ()FFICE.

ELMORE XV. ROSS, OF SPRINGFIELD, OHIO.

FEED-CUTTER.

SPECIFICATION forming part of Letters Patent No. 400,117, dated March 26, 1889.

Application filed November 26, 1887. Serial No. 256,248. (No model.)

To all whom it may concern:

Be it known that I, ELMORE WV. ROSS, of Springfield, county of Clark, and State of Ohio, have invented a new and useful Improvement in Feed-Cutters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification.

My invention relates to that class of machines in which a pivot-ed cutter operates in connection with a stationary cuttingedge over which the material to be operated upon is fed, the object of my invention being to simplify and reduce the cost of construction of this class of machines and to make the ad just-ment of the movable cutter relative to the fixed cutter for insuring the proper action of said cutters as simple and easy as practicable.

The improvement consists in the combination, with the cutter-frame, of an adjustable pivotal support for the movable cutter, and of novel means for effecting the adjustment of said support and for holding the same-and its retaining-bolt properly against the lateral thrust or strain of the knife, as hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective View of a feed-cutter with my improvements applied. Fig. 2 is a plan view of the pivot and its support and adjusting devices. Fig.3 is a section through the pivoted support and the knife-arm sleeve, taken on the line :10 .90, Fig. 2; and Fig. 4 shows the pivot and its supporting and adjusting devices in detail.

A indicates the frame and B the feed-box or tray of the machine, said parts being of any usual form and construction, such as is shown.

C is a cast-iron mouth-piece, through which the material to be operated upon is fed to the cutter, and O a flange formed upon or secured to the casting O, and projecting therefrom at the bottom and sides of the feedopening, as shown, and forming the fixed or stationary cutter.

C is an arm or bracket projecting laterally from the side of the casting O, as shown in Fig. 1, and made in formsubstantially as shown in the detail plan views, Figs. 2 and a that is to say, it is provided at its outer end with a'socket, 0 0 indicating the horizontal slotted bottom thereof and c and 0 vertical flanges forming the sides of the socket.

D is the pivot on which the movable knife is supported, made tapering toward its outer end and formed on a plate, D, which rests in t'" e socket C. This plate is made widest near the ends on which the pivot D is formed, so as at one point, d d, to exactly fit in width the socket C and is rounded or made tapering each way from said point in such manner as to permit the pivot and its plate to swing or be adjusted on said point or points as a pivotal center. The shank or inner end of plate Dis made of less width than the socket C to permit its adjustment laterally therein, and has a slot, 6, formed in it overlying a slot, 6', in the bottom 0 of the socket C One of these slots crosses the other obliquely in such manner that when the bolt f, which passes through the slots and fastens the plate D to the arm O is loosened and adjusted backward or forward in the slot, it serves to swing the plate D and pivot on the pivotal point d (1, above referredto, for adjusting the knife. The pivot-plate can also be adjusted longitudinally in the socket for properlyadjusting the knife.

F is a cam-plate, which rests on the pivotplate or shank D ,andis held in place'thereon by the through-boltf. Then the bolt has been loosened and the pivot D adjusted as desired, the cam F is adjusted or turned so as to bear snugly against the side wall, 0, of the socket 0 after which the bolt is tightened, and the cam acts as a support to the upper end thereof and prevents it from being wrenched or broken, as it might be if left unsupported at its upper end. I

G indicates the knife-lever, G the knife, and G the guard for closing the mouth or feed opening when the knife is down. The lever G has a tapering sleeve, 9, formed on its end, which fits snugly the tapering pivot D for pivoting the knife-lever thereon. The

pivot D has formed upon the outside of its tapering pivot portion proper a polygonal extension, h, adapted to receive a washer, H, having a perforation matching said extension, and outside of said polygonal portion h, which prevents the washer from turning, the pivot D has a screw-threaded extension, 7t, receiv- .ing a nut, 71*, which serves to hold the washer I! and sleeve r on the pivot, and by its adj nstment to adjust the sleeve, and with it the adjacent end of the knife, and to compensate for wear between the pivot; and sleeve in a manner that will be readily understood.

In practice it is essential that the moving knit'e shall begin to operate first at its outer end and thence Work inward toward its pivot, and, to give it a clean shearing cut it must be so adjusted as to bear snugly at its outer end against the fixed cutter, and then be so held that as the blade descends it will. continne to press firmly against the lixed cutter, so as to produce a clean shearing cut. The adjustable pivotal support described permits the ready adjustment of the movable knife for thispurpose, and when properly adjusted a slight amount of springing action in the knife and knife-lever serves to hold themovable knife properly up to its work at all point s in its length. In practice the knife-lever is provided with the usual pendent feed-gage plate, (not shown,) located outside of and hanging down from the knife-lever.

I'Iaving now described. my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The slotted pivot-snpporting arm on the feed-cutter frame, in combination with a slotted pivot-plate or shank, the slot in one of said parts being in oblique relation to the slot in the other part, substantially as and for the purposes dcscri bed.

2. The slotted knife-pivot support on the cntter-fraine, in combination with the slotted plate having the knife-pivot formed upon it, the slot in the pivot-plate crossing obliquely the slot in the support and the through-bolt uniting said parts, whereby the knife-pivot is made both loi'igitudinally and pivotally adjustalfle, and is retained at the desired ad justment by a single bolt, substantially as described.

3. The combination,with the slotted knifepivot support, of the slotted plate having the tapering knife-pivot formed upon it and provided with a slot crossing obliquely the slot in the pivot-support, and a single through-bolt uniting said parts and permitting both the longitudinal and pivotal adjustment of said pivot, substantially as described.

4. A knife-pivot bracket or support having a side wall or flange, in combination with a knife- )ivot arm supported by and having its fulcrum on said side wall of said bracket, one of said parts being provided with a slot, and a through-bolt for uniting said bracket and knife-pivot arm and permitting the adjustment of the latter on its side tulcrum-poini, substantially as described.

5. The combination, with the knile-supporting bracket, of the knife-pivot plate supported by said bracket, one of said parts being slotted, the through fastening-bolt, the cam adjustable on said bolt, and. a bearing for said cam to press against to adjust and hold the k nife-pivot plate, substantially as described.

(3. The combination, with the slotted and socketed knife supporting bracket, of the slotted knife-pivot plate pivotal] y supported on the side walls of the bracket-socket, the clamping through-bolt, and the cam adjustable on said bolt, substantially as described.

7. The colnlnnation, with the kni'lte-supporting arm having the socket and slot, as described, of the slotted and pivotally and longitudinally adjustable pivot-plate D, the tapering pivot on said plate, and the throughbolt for securing the plate I) to the arm or bracket 0 and the cam-plate I? on said bolt, all substantially as described.

In testimony whereof I have hereunto set in y hand this 26th day of November, A. I). 1.887

ELMORE ROSS.

\v'itnesses:

'W. I. BELL, R. M. BELL. 

